step 3 add autofill to the rest

step 3 add autofill to the rest.diff

diff --git a/lib/main.dart b/lib/main.dart
index 4f1704b..526ac61 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -65,15 +65,18 @@ class _MyStatefulWidgetState extends State<MyStatefulWidget> {
             },
           ),
           if (!isSameAddress)
-            Column(
+            AutofillGroup(
+              child: Column(
                 children: [
                   TextFormField(
+                    autofillHints: [AutofillHints.streetAddressLine1],
                     decoration: const InputDecoration(
                       labelText: 'Billing address 1',
                       hintText: 'Number and street',
                     ),
                   ),
                   TextFormField(
+                    autofillHints: [AutofillHints.streetAddressLine2],
                     decoration: const InputDecoration(
                       labelText: 'Billing address 2',
                       hintText: '(optional) APT number, c/o',
@@ -81,17 +84,27 @@ class _MyStatefulWidgetState extends State<MyStatefulWidget> {
                   ),
                 ],
               ),
+            ),
+          AutofillGroup(
+            child: Column(
+              children: [
                 TextFormField(
+                  autofillHints: [AutofillHints.creditCardNumber],
                   decoration: const InputDecoration(
                     labelText: 'Credit Card #',
                   ),
                 ),
                 TextFormField(
+                  autofillHints: [AutofillHints.creditCardSecurityCode],
                   decoration: const InputDecoration(
                     labelText: 'CCV',
                   ),
                 ),
+              ],
+            ),
+          ),
           TextFormField(
+            autofillHints: [AutofillHints.telephoneNumber],
             decoration: const InputDecoration(
               labelText: 'Contact Phone Number',
             ),